Job ToolsetWhat 10,000 options are actually worth
Devon turned down a $15,000 raise to join a startup that offered 10,000 stock options and a recruiter who kept saying "this could be life-changing." The company was valued at $400 million. Devon did the quick mental math, $400M times some fraction, and pictured a number with a lot of zeros. Then he tried to figure out what the options were genuinely worth. The honest answer was uncomfortable: nobody could tell him.
Start with what an option is. A grant of 10,000 options at a strike price of $2 gives you the right to buy 10,000 shares for $2 each, $20,000 of your own money, at some future date. The value isn't $20,000. It's the spread: the difference between what a share is worth and what you pay. If shares are worth $5, your spread is ($5 − $2) × 10,000 = $30,000 before taxes. If shares are worth $2, your spread is zero, and the options are worthless until the price climbs.
Then there's the question the headline valuation hides: how much of the company do you actually own? A $400M company with 40 million shares outstanding means each share represents $10 of value, and your 10,000 options represent 0.025% of the company. That's not nothing, but it's a far cry from the fantasy. And every new funding round issues more shares, diluting your slice further.
ISOs and NSOs are taxed differently, and the difference is real money. Incentive Stock Options (ISOs) can qualify for capital-gains treatment if you hold long enough, but exercising them can trigger the Alternative Minimum Tax on the paper spread, money you owe before you've sold a single share. Non-Qualified Stock Options (NSOs) tax the spread as ordinary income the moment you exercise. Same grant, wildly different tax bills.
This calculator turns the recruiter's hand-wave into numbers. Enter your grant size, strike price, estimated share value, and shares outstanding, and see your real ownership percentage and the spread you'd actually pocket, so you can weigh the equity against the salary you're giving up.